What is "deputising"

Usage examples of "deputising".

There are four of us sitting there who could do the job with our eyes closed but instead of paying one of us a little deputising they bring in this fucking high-flyer who doesn't know his arse from his elbow.

Your father deputising you is one thing, replacing you out of time is quite another.

The local doc - the guy who'd helped save Andy after he almost died under the ice all those years earlier - was on holiday at the time and there was a locum, a deputising doctor in charge of the practice, except from what the locals muttered later it seemed he'd treated his stay in Strathspeld as a holiday, too, and spent more time on river banks with a rod in his hands than at bedsides toting a stethoscope.